I just upgraded from Old Analytic to Universal Analytic. I removed the old analytic javascript and replace it with my new universal analytic javascript code. Am i doing right?
I believe so. At least that's the process we're following with our PROPERTIES. Initiate the transfer, when the transfer is complete, swap out the code. The two main steps are outlined here, but I'm guessing you already know this.... https://developers.google.com/analytics/devguides/collection/upgrade/guide